1. CSS PreProcessors
MIS 424

2. Outline
What are CSS Preprocessors
Benefits
Products & popularity
LESS

3. What are CSS Preprocessors
Scripting language for writing CSS
Write CSS more efficiently
Variables
Functions
Operations (math)
Other features
Eliminate duplicate code

4. Benefits of CSS Preprocessors
CSS files:
Duplicate code
Lack of structure
CSS preprocessors
Provide programming features:
Classes
Parameters
Math features
Namespaces
Etc.

5. Products & Popularity Survey by css-tricks.com
13,000 web developers responded
54% have tired CSS preprocessors
Preferred syntax/product:
Sass 5%
Scss 13%
LESS 23%
Stylus 3%
I don't like any of them 7%
I don't have a preference 2%
I've never tried any of them 46%
Other 1%

6. LESS
Visual Studio
Web Essentials Plugin